<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
<h1>运算符</h1>

<script>
    console.log(1=='1');
    console.log(1==='1');
    console.log(0==false);
    console.log(0===false);
    console.log(null==undefined);//true
    console.log(null===undefined);//false
</script>
</body>
</html>